html,
body {
  height: 100%;
}
ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
.lt-layout {
  position: relative;
  max-width: 640px;
  min-width: 320px;
  margin: 0 auto;
  padding: 45px 0 50px 0;
  height: 100%;
  background: #fff;
  overflow: hidden;
}
.lt-header {
  position: absolute;
  left: 0;
  top: 0;
  height: 45px;
  width: 100%;
  background-color: #069;
  padding: 0 45px;
}
.lt-header h4 {
  height: 45px;
  line-height: 45px;
  color: #fff;
  margin: 0;
  font-weight: normal;
}
.lt-header a {
  position: absolute;
  left: 0;
  top: 0;
  width: 45px;
  height: 45px;
  text-align: center;
  line-height: 50px;
  color: #fff;
}
.lt-header .mui-icon {
  font-size: 30px;
}
.lt-header .search {
  left: auto;
  right: 0;
}
.lt-main {
  height: 100%;
  width: 100%;
  position: relative;
}
.lt-main .lt-nav {
  padding: 10px;
}
.lt-main .lt-nav li {
  float: left;
  width: 33.33%;
}
.lt-main .lt-nav li img {
  display: block;
  width: 100%;
}
.lt-main .lt-product {
  padding: 10px;
}
.lt-main .lt-product .item {
  float: left;
  width: 48%;
  border: 1px solid #ccc;
  border-radius: 5px;
  text-align: center;
  padding: 10px;
  margin-bottom: 10px;
}
.lt-main .lt-product .item img {
  width: 100%;
}
.lt-main .lt-product .item .price {
  font-size: 14px;
  margin-bottom: 20px;
}
.lt-main .lt-product .item .price span:first-child {
  color: red;
}
.lt-main .lt-product .item .price span:last-child {
  color: #ccc;
  text-decoration: line-through;
}
.lt-main .lt-product .item:nth-child(even) {
  float: right;
}
.lt-footer {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 50px;
  width: 100%;
  background: #069;
}
.lt-footer ul li {
  padding: 5px;
  float: left;
  width: 25%;
  text-align: center;
  color: #fff;
}
.lt-footer ul li p,
.lt-footer ul li span {
  color: #fff;
}
.lt-footer ul .current p,
.lt-footer ul .current span {
  color: orange;
}
